Antirattling device for windows



Dec. 29, 1936. F. E. JENNINGS ANTIRATTLING DEVICE FOR WINDOWS Original Filed Aug. 15, 1935 6%. JMM A TTORNEY:

f R.. w I m a i m. a ma. w uu mu w f F N m 2 9m J ,,/4 I I Patented Dec. 29, 1936 ANTIR-ATTLING DEVICE FOR WINDOWS Floyd E. Jennings, San Mateo, Calif.

Application August 13, 1935, Serial No. 35,943 Renewed October 21, 1936 1 Claim.

This invention relates to anti-rattling devices for windows.

Windows which do not fit perfectly within their frames are prone to rattle noisily with the slightest wind. To adjust the size of the sash or frame requires skilled labor and is costly. Furthermore, when the sash or frame, or both, are constructed of wood, their sizes are not constant because of swelling and shrinking, due to variations in humidity with changes of weather.

1 Most devices heretofore constructed to abolish rattling of windows depend upon pressure which is exerted on the sash at all times, with the result that the sash is difiicult to operate. Other devices require operation each time a sash is opened or closed.

It is the object of the present invention to provide an improved anti-rattling device for windows which will function automatically upon movement of the sash to closed position and which will in no way impede the free opening of the sash or adjustment thereof from one open position to another.

It is a further object of my invention to provide such a device which, when installed on a window,

will provide compensation for the shrinkage of the sash normally occurring after they have been in use for a short period of time and thereby to improve the operation of the sash lock which may have become faulty, due to such shrinkage.

Further objects are the provision in a simple and inexpensive device of means for taking up or closing the cracks existing around an ill-fitting sash thus to prevent leakage of air through the closed window, and means to cushion the shock resulting upon closing of a sash when it strikes the sill.

One form of my invention is illustrated in the accompanying drawing and described more specifically in the following specifications, wherein further of the objects and advantages thereof are made apparent.

In the drawing- Fig. 1 is a central vertical section of a window provided with an anti-rattling device constructed in accordance with my invention;

Fig. 2 is a perspective view of the anti-rattling device illustrated in Fig. 1;

Fig. 3 is an enlarged sectional view of a portion of the window and the anti-rattling device, illustrating the same with the sash in an open position; and

Fig. 4 is a view similar to Fig. 3, showing the sash in its closed position.

55 In Fig. 1 I show a window frame which comprises a top member if), a member 1 surmounted by a sill i2, and the usual inner and outer frame members 13 and M, respectively, which cooperate with a parting bead iii to form guides for the vertically sliding sash. An upper sash is illustrated at E6 and a lower sash at H. The bottom rail l8 of the upper sash aligns with the top rail 19 of the lower sash when the windows are in closed position so that the conventional locking device 20 may be employed to prevent opening of the sash.

An anti-rattling device, generally indicated at 2!, is secured to the sill ii? in such a position that a portion thereof underlies the lower rail 22 of the lower sash. The construction of the 15 anti-rattling device 2! is best shown in Fig. 2 where it is illustrated as formed of a thin rectangular plate capable of being secured to the sill. Any suitable means may be employed for securing the device to the sill, such, for example. as screws or nails, and I have, therefore, shown 20 the plate perforated, as at 23, to provide for its securement by such means. The rear portion 2 3 of the plate which, when it is installed, underlies a lower rail of the bottom sash, is bent upwardly to engage the sash as it is brought to a closed 25 position.

The material of which the anti-rattling device is made must be resilient and is preferably weather-proof or rust-resistant. One suitable material for this purpose is spring bronze. Ow- 3O ing to the resiliency of the portion 24, there is a tendency thereof to urge the lower sash upwardly so that when the sash is brought to its closed position and locked thereat, by means of the locking device 29, both sash will be securely held against rattling in the vertical guides of the frame. This upward pressure on the lower sash also brings the two parts of the lock 2i into close relationship with each other, so that, notwithstanding the fact that the sash may have shrunk (due to becoming dry since having been installed), the parts of the lock will cooperate properly to provide a secure fastening.

In order to add to the resiliency of the device and to provide means more firmly securing the sash against rattling, as well as means for preventing leakage of air in the spaces surround.- ing the sash, the device may be formed with the rear end thereof bent back upon itself, as 50 illustrated at 25, and then bent upwardly to a generally vertical position, as indicated at 26. The uppermost edge of the vertical portion 26 may be finished in any suitable way (as by curling over), as is indicated at 21, to prevent scarring of the sash thereby and to eliminate danger of cutting or scratching the hands on the more or less sharp edge which might otherwise be present. The upstanding member 26 is, in fact, a lever arm capable of swinging about its lowermost edge and having its position controlled by the position of the members and 24, of which it is an integral part.

Any desired number of the devices, as illustrated in Fig. 2, may be used on a single window. I have found, however, that on windows of average width, two such members will be suitable; while on extraordinarily narrow windows, a single device will serve. I also contemplate forming elongated strips of the same or similar cross sectional contour as that illustrated in the drawing, thus providing a material which may be cut into lengths equal to the full width of the window to which it is to be applied. The position of the anti-rattling device secured to the sill and with the sash open is illustrated in Fig. 3. In this figure the vertical member 26 is shown as spaced slightly from the plane of the outer surface of the sash, and the members 24 and 25 are disposed at an angle to the sill. As the sash is brought to a closed position, such position being illustrated in Fig. 4, its lower edge bears against the angularly disposed member 25, swinging this member, together with the member 24, downwardly toward the sill. This movement of the member 25 causes the vertical member 26 to swing inwardly and engage the outer surface of the sash, as illustrated, thus further preventing the rattling of the lower sash and also forcing this sash against the inner frame member I3 which serves as a stop.

The device described above, though simple in construction, is capable of ready attachment to any window of the sliding sash type to perform several useful functions upon closing of the sash-all automatically and without the necessity of any special attention. As the members 24 and 25 are slightly spaced from each other and formed of resilient material, they act as a spring or cushion beneath the sash, preventing the ordinary objectionable noise and jar occasioned by closing the sash against the sill. Either or both of the members 24 and 25 then impart upward pressure on the lower sash, which is transmitted through the locking device 20, to the upper sash, thus securely holding both sash against rattling movement in their guides.

Owing to the upward pressure on the lower sash, any space at the top or bottom of the sash members, which may be caused by shrinking of the sash and which would tend to cause an air leak, will be eliminated, leaving only a relatively large space beneath the bottom rail of the bottom sash. As the resilient vertical member 26 is firmly pressed against the bottom sash, urging it into contact with the inner frame member l3, a seal is formed which prevents an air leak at this point. Owing to thepressure beneath the bottom sash, the meeting rails of the sash which carry the lock will be brought into such position that the lock will be effective to perform its intended function of bringing these rails into close contact with each other.

Thus I have provided, in a very simple and in expensive structure, a device which positively insures against unnecessary rattling and leakage of air about loose or ill-fitting sash.

While I have shown a preferred form of my invention, it is to be understood that various changes may be resorted to in its construction and the arrangement of its several parts within the scope of the appended claim.

What I claim is- In an anti-rattling device for windows, a resilient metal strip, means for securing said strip to a window sill adjacent the lower rail of the sash, said strip having a portion underlying the sash and bent upwardly at an angle to the sill, then bent back upon itself and vertically upwardly exteriorally of the sash whereby clos ing of the sash upon the portion underlying it will cause the vertical portion of the strip to be brought into engagement with the outer surface of the sash.

FLOYD E. JENNINGS. 

